Yes, take percentages off for now and just talk real numbers. Trump’s actual number of voters is not growing. He is not doing anything to add to his total unless it’s motivating racist/misogynists that can’t vote for a melanated woman.
Trump is shedding voters who are less motivated and in some cases seeing some of the weirdness open their eyes with a horrible VP choice and continual fuck ups with veterans. He lost some on 1/6/2021, lost more that have died over the last 4 years. Trump’s max this cycle was when Biden was still in the race and he looked like the most capable old guy.
The changes in percentages are happening because Harris is changing eligible and registered voters to likely and unmotivated to engaged. In this way Harris-Walz own the outcome of the election and all Trump can do it bitch and whine which is what he is best at. Harris-Walz actions will determine the race based on their ability to maintain momentum and avoid pitfalls.
The wildcard factor in this race now will be the economy over then next 2 months. I saw data where 3 of 5 people think we are in a recession now. If we have pundits that start saying recession too much it could be like Beetlegeuse and manifest in the minds of voters even though we have not had one negative quarter yet, much less two required to be in a recession.